From d219cd1479d4e8e1a8e5802e9bed3c78b0b5b5e7 Mon Sep 17 00:00:00 2001
From: "Kenneth Benzie (Benie)" <benie@infektor.net>
Date: Fri, 13 Dec 2024 20:35:12 +0000
Subject: [PATCH] Replace default cd alias with cd function

Define cd to work more like Unix/Linux:

* No path argument changes to the users home directory
* Passing "-" for the path argument changes to the previous directory
---
 alias.ps1   |  8 ++++----
 profile.ps1 |  3 ++-
 utils.ps1   | 16 +++++++++++++++-
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/alias.ps1 b/alias.ps1
index 7c3d5e6..63108ad 100644
--- a/alias.ps1
+++ b/alias.ps1
@@ -1,4 +1,4 @@
-# Remove these aliases to PowerShell builtins which clobber the actaul exes.
-Remove-Item alias:curl
-Remove-Item alias:wget
-# TODO: Remove default abbriviation aliases
+# Remove builtin aliases
+Remove-Item Alias:curl
+Remove-Item Alias:wget
+Remove-Item Alias:cd
diff --git a/profile.ps1 b/profile.ps1
index 1ef05f3..6d9604a 100644
--- a/profile.ps1
+++ b/profile.ps1
@@ -11,4 +11,5 @@ $OutputEncoding = New-Object -typename System.Text.UTF8Encoding
 . $PSScriptRoot\alias.ps1
 . $PSScriptRoot\utils.ps1
 . $PSScriptRoot\layout.ps1
-# TODO: $PSScriptRoot\build.ps1
+# TODO: . $PSScriptRoot\build.ps1
+# TODO: . $PSScriptRoot\autoenv.ps1
diff --git a/utils.ps1 b/utils.ps1
index b850a50..c4758d0 100644
--- a/utils.ps1
+++ b/utils.ps1
@@ -1,2 +1,16 @@
-# TODO: Define cd to work with zero args for home and - for last directory
+# Define cd to work more like Unix/Linux:
+# * No path argument changes to the users home directory
+# * Passing "-" for the path argument changes to the previous directory
+$Global:cdPreviousPath = Get-Location
+function cd {
+  Param ([string]$Path)
+  if ($Path -eq "") {
+    $Path = "~"
+  } elseif ($Path -eq "-") {
+    $Path = $cdPreviousPath
+  }
+  $Global:cdPreviousPath = Get-Location
+  Set-Location -Path $Path
+}
+
 # TODO: Define rm to work with -rf and multiple entries